-67.3% is the change from 847 to 277
Calculation steps:
[( 277 - 847 ) ÷ 847] x 100 = -67.3%
Formula
Percentage change = [(277 - 847) / 847] x 100
Subtract the new number by the original number
277 - 847 = -570
-570 ÷ 847 = -0.6729634002361276
-0.6729634002361276 x 100 = -67.3%